Academic literature on the topic 'Résistance à l'impact'
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Journal articles on the topic "Résistance à l'impact"
T., Éric. "La dissidence aux Antilles (1940-1943)." Vingtième Siècle. Revue d'histoire 68, no. 4 (October 1, 2000): 55–72. http://dx.doi.org/10.3917/ving.p2000.68n1.0055.
Full textKamangu, Joël BK. "Profil épidémiologique d’Escherichia Coli isolé des urines aux Cliniques Universitaires de Lubumbashi par le diagnostic de la Bêta-Lactamase à large spectre." Revue de l’Infirmier Congolais 8, no. 1 (July 20, 2024): 36. http://dx.doi.org/10.62126/zqrx.2024819.
Full textBarré, Nicolas, G. I. Garris, and Rosalie Aprelon. "Acaricides pour l’éradication de la tique Amblyomma variegatum dans les Antilles." Revue d’élevage et de médecine vétérinaire des pays tropicaux 46, no. 1-2 (January 1, 1993): 349–54. http://dx.doi.org/10.19182/remvt.9391.
Full textPetrella, Ricardo. "La formation au futur : les pièges de l’économie de marché dérégulée, libéralisée, privatisée, compétitive." Articles 23, no. 1 (October 10, 2007): 91–100. http://dx.doi.org/10.7202/031904ar.
Full textBerard, A., and T. Pelte. "Les herbicides inhibateurs du photosystème II, effets sur les communautés algales et leur dynamique." Revue des sciences de l'eau 12, no. 2 (April 12, 2005): 333–61. http://dx.doi.org/10.7202/705355ar.
Full textCollin, Jacques E. "Résistance à L'Impact Électronique et Aux Radiations de Quelques Composés Organiques À Caractère Aromatique." Bulletin des Sociétés Chimiques Belges 72, no. 1-2 (September 2, 2010): 38–49. http://dx.doi.org/10.1002/bscb.19630720104.
Full textBaum, Gregory. "L’avenir de la religion : entre Durkheim et Weber." Nouvelles pratiques sociales 9, no. 1 (January 28, 2008): 101–13. http://dx.doi.org/10.7202/301351ar.
Full textPecko-Drouin, Krystyna, and Chantal Perrault. "Évaluation de la mise sur pied d’un programme d’information sur les agresssions sexuelles dans dix écoles primaires de l’est de Montréal." Santé mentale au Québec 10, no. 1 (June 7, 2006): 58–64. http://dx.doi.org/10.7202/030268ar.
Full textViña, Jaime, Antonio Argüelles, Ramdane Zenasni, and Djamel Ouinas. "Effet des directions de l'impact, des fibres et du vieillissement sur la résistance du composite en fibres de verre." Revue des composites et des matériaux avancés 16, no. 3 (December 23, 2006): 305–14. http://dx.doi.org/10.3166/rcma.16.305-314.
Full textAkre, Djako Sosthène Thierry, Obou Constantin Okou, Allali Eugène Koffi, Kassi Benjamin Ebe, and Jacques Auguste Alfred Bognan Ackah. "Prévalence et phénotypes de résistances aux antibiotiques des souches d’Escherichia coli responsables des diarrhées de veaux à Daloa, Côte d’Ivoire." International Journal of Biological and Chemical Sciences 16, no. 6 (March 11, 2023): 2685–98. http://dx.doi.org/10.4314/ijbcs.v16i6.18.
Full textDissertations / Theses on the topic "Résistance à l'impact"
Keisler, Carole. "Etude de la résistance à l'impact d'assemblages collés. Influence des états de surface." Bordeaux 1, 1992. http://www.theses.fr/1992BOR10612.
Full textFourton, Paul. "Mécanismes de résistance à l'impact des vitrages feuilletés – effet des interfaces et de la rhéologie du polymère." Electronic Thesis or Diss., Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLET059.
Full textLaminated glass is an industrial product designed for safety applications. A polymer interlayer is inserted between two glass plies to provide impact resistance properties to the glazing. Upon impact, this polymer interlayer debonds and deforms between glass fragments:these two coupled mechanisms provide the impact resistance properties. On the “interface” side, we propose an original method to finely tune the adhesion between glass and interlayer in chapter III. The surfaceof the glass is modified with sol-gel chemistry using two silane species. Despite a non-standard deposition method and coatings thickerthan a perfect molecular layer, we demonstrate that adhesion of the polymer interlayer can be tuned via surface chemistry. On the “polymer” side, we decided to change completely the nature of the interlayer, from a viscoelastic to a plastic material. Withthis plastic interlayer, we have evidenced the necessity to modify the interfaces to retrieve a stable delamination behavior. Moreover,concomitant debonding and stretching of this plastic interlayer dissipates less energy due to the localization of energy dissipation close tothe delamination fronts. Still, when viscoelastic processes are activated at the glass transition, we recover dissipation in the entire volume of the interlayer and high potency for impact applications. Last but not least, to try and make a connection between interfaces, polymer rheology and delamination properties in laminated glass,we present a numerical simulation of the crack propagation problem with a steady-state approach. Since the steady-state crack schemeis not implemented in commercial finite-element codes, we propose a strategy coupling FEA and numerical computing softwares. First results in small strains validate the method, which is expected to be extended to rate-dependent non-linear material behaviors in thefuture
Belzil, Guylaine. "Escalade et résistance aux soins d'hygiène associée à la démence : Perspective interactionnelle sur l'impact des comportements des soignants." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29055/29055.pdf.
Full textBailleul, Quentin. "Etude de l'impact de la mutation H3.3K27M sur le phénotype agressif et résistant de lignées cellulaires de gliome pédiatrique." Thesis, Lille 1, 2020. http://www.theses.fr/2020LIL1S107.
Full textDiffuse Intrinsic Pontine Glioma is one of the worst pediatric brain tumors regarding prognosis due to cell resistance to chemo and radiotherapy. One of DIPG cells main characteristics is a mono-allelic mutation on the lysine 27 of histone H3 (H3K27M). This mutation inhibits the trimethylation of this lysine that leads to strong modifications of gene expression. Even though this mutation seems to be a driver event in tumorigenesis, its role in cell resistance to treatment has not been deciphered. To accomplish this, we needed to establish complementary cellular models of induction but also the reversion of the mutation.This way, to evaluate the role of the mutation on resistance to treatment, we first induced the mutation in three H3K27-unmutated pediatric glioma cell lines. In parallel, using the CRISPR/Cas9 technology and gene trapping approaches, we establish DIPG cellular models in which the mutation has be reversed to restore an H3F3A wild type gene. These two strategies allowed us to have a panel of available cellular models with or without mutation. Basis on these models, we evaluated the precise role of H3.3K27M mutation on chemo and radioresistance but also on cell growth and clonogenic properties.For the model of induction, we confirmed the epigenetics impact of the mutation. Next, we showed an increased cell growth due to the mutation in two cell lines, concomitantly with an increase of clonogenic properties. H3.3K27M mutation had an impact on resistance to both chemotherapy or ionizing radiation in the same cell lines. We could identify several drugs for which the mutation increases cell resistance. We observed that H3.3K27M could improve cell resistance and aggressiveness, especially in a low-grade glioma context. Concerning the mutation reversion, we validated the loss of the mutation in one DIPG cell line. In this way, we succeeded in restoring the H3K27me3 mark. Our preliminary assays on cell growth and clonogenic properties exhibit results that are in adequacy with those obtained on the induction model.To sum up, these different models would allow us to decipher cellular and molecular mechanisms induced by the H3.3K27M mutation in DIPG cells, including resistance to treatment, and possibly identify putative therapeutic targets
Isingrini, Elsa. "Modélisation de l'impact de la dépression sur le système cardiovasculaires : utilisation du modèle de stress chronique imprédictible chez la souris." Thesis, Tours, 2010. http://www.theses.fr/2010TOUR4033/document.
Full textEpidemiologic studies have demonstrated that depressive symptoms can predict cardiovascular disease in healthy patients. The purpose of this study was to develop an animal model able to reproduce the vascular alterations and the treatment resistance observed in depressed subjects who develop vascular disease. Atherosclerotic plaque formation and endothelial dysfunction were assessed in mice exposed to the Unpredictable Chronic Mild Stress (UCMS) that constitute a reliable animal model of depression and the reversal effect of antidepressant was assessed in UCMS mice fed a high fat diet. Our results show that high fat diet regimen prevented the reversal effect of chronic fluoxetine treatment on UCMS-induced depressive-like behaviour. Moreover, UCMS-induced endothelial dysfunction was not associated with atherosclerotic plaque formation. These findings suggest that this model can reproduce the physiological but not the morphological vascular alterations observed in depressed patients who develop vascular disease as well as the reported treatment resistance in depressed patients also suffering from cardiovascular risk factor
Du, Bois-dit-Bonclaude Morgane. "L'impact de la consommation de protéines post exercice en résistance sur la faim, l'appétit et l'apport énergétique subséquent des hommes âgés sarcopéniques." Mémoire, Université de Sherbrooke, 2015. http://hdl.handle.net/11143/8056.
Full textEudes, François André Germain. "Étude de l'impact des trichothécènes de Fusarium chez le blé et sélection in vitro pour la résistance à la fusariose de l'épi." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq26063.pdf.
Full textAl-Maghribi, Abir. "Comportement des matériaux composites à fibres courtes : applications à l'impact basse vitesse." Toulouse 3, 2008. http://thesesups.ups-tlse.fr/337/.
Full textThe objective of this work is to investigate the behaviour of a short fiber composite material subjected to low speed impacts. The studied material is a SMC composite material realized by compressive moulding. A first part of the study gives elastoplastic with damage behaviour of this type of material. These laws were coded into the user defined material subroutine of (LS-DYNA3D and EUROPLEXUS). Characterizations tests of the SMC-R were realized in order to identify non linear behaviour. The tests realized are tensile test, compressive test, shearing test and dynamic compressive test. The tests have allowed us to identify damage behaviour. The obtained behaviour is necessary for the study of impact. The second part of the study presents the experimental analysis of the impact. The impacts were realized for various energies (4, 8, 12, 16 J). The defects after impact tests are controlled by RX testing, US control, and microscopic observation, in the aim to analyze and quantify the defects create during the impacts. These analyses showed a conical defect in the thickness of plates. Finally a comparison is made between the results obtained experimentally and those obtained from an explicit numerical simulation. This comparison shows that the numerical simulations of impact behaviour are in good agreement with the experimental results. The results globally show a global correlation for the load-displacement behaviour and a local correlation for the defect size
Pinilla, Lady Tatiana. "Évaluation de l'impact de la mutation de résistance à l'oseltamivir (H275Y) sur les capacités réplicatives et la virulence du virus pandémique A(H1N1) pdm09." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29427/29427.pdf.
Full textOne class of anti-influenza agents; the neuraminidases inhibitors (NAIs), is the only choice commercially available for treatment and prophylaxis of seasonal and pandemic influenza infections. The pandemic 2009 Influenza virus, A(H1N1)pdm09, was naturally resistant to adamantanes but susceptible to the NAI: oseltamivir and zanamivir. However, more than 1.5% of cases of oseltamivir resistance have been reported during treatment and prophylaxis and most of them carried a single nucleotide mutation (cytosine to thymidine) at position 823 that resulted in a histidine to tyrosine mutation at position 275 in the neuraminidase sequence (H275Y). Considering that the number of available anti-influenza drugs is very restricted (zanamivir is now the only commercially available drug for treatment of the adamantane- and oseltamivir-resistant A(H1N1)pdm09 strains), it is important to understand mechanisms of resistance to NAIs and to perform a surveillance program for evolution of such drug-resistant variants.
Boutoille, David. "Étude chez Pseudomonas aeruginosa de l'impact du système d'efflux MexAB-OprM sur les traitements antibiotiques et sur l'expression de la virulence." Nantes, 2009. https://archive.bu.univ-nantes.fr/pollux/show/show?id=d8d72834-08a6-4b17-acdc-0946548970a7.
Full textBacterial efflux systems extrude antibiotics, amongst a wide range of substances from the intracellular middle toward the outside. In Pseudomonas aeruginosa, MexAB-oprM acts synergistically with other natural or acquired mechanisms of resistance. Efflux is well characterized in vitro, but its in vivo effects are less clear. In particular, how must they be interpreted on the antibiogramm : are the implicated antibiotics still efficient in severe infections ? MexAB-oprM interferes with virulence by extruding the homoserine lactones, i. E. The transcriptional autoactivators that regulate quorum-sensing, and then might decrease expression of bacterial virulence determinants. This was shown essentially in vitro on laboratory strains. But in clinical practice, are the concerned strains really less virulent ? In this work, we tried to bring a few elements of answers to these questions. In a first part, we studied the impact of MexAB-OprM on antipseudomonal b-lactams, in an experimental model of rabbit endocarditis, using a simulation of human pharmacokinetics. In a second part, we studied the supposed relationship between MexAB-OprM and the expression of virulence, in vitro by assessing several virulence factors and quorum-sensing autoinducers, and in vivo in different murine models of pulmonary aggression
Books on the topic "Résistance à l'impact"
Les batailles de l'impôt: Consentement et résistances de 1789 à nos jours. Paris: Seuil, 2011.
Find full textBook chapters on the topic "Résistance à l'impact"
FALL, Papis Comakha. "Les mobilités dans l'espace ouest-africain aux XIXe et XXe siècles." In Les Annales du Sud, No. 1, 113–26. Editions des archives contemporaines, 2023. http://dx.doi.org/10.17184/eac.7246.
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